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Просмотр файла: posix.js
// Copyright 2018-2025 the Deno authors. MIT license.
// Copyright the Browserify authors. MIT License.
function assertPath(path) {
if (typeof path !== "string") {
throw new TypeError(`Path must be a string, received "${JSON.stringify(path)}"`);
}
}
// Copyright 2018-2025 the Deno authors. MIT license.
// This module is browser compatible.
function stripSuffix(name, suffix) {
if (suffix.length >= name.length) {
return name;
}
const lenDiff = name.length - suffix.length;
for(let i = suffix.length - 1; i >= 0; --i){
if (name.charCodeAt(lenDiff + i) !== suffix.charCodeAt(i)) {
return name;
}
}
return name.slice(0, -suffix.length);
}
function lastPathSegment(path, isSep, start = 0) {
let matchedNonSeparator = false;
let end = path.length;
for(let i = path.length - 1; i >= start; --i){
if (isSep(path.charCodeAt(i))) {
if (matchedNonSeparator) {
start = i + 1;
break;
}
} else if (!matchedNonSeparator) {
matchedNonSeparator = true;
end = i + 1;
}
}
return path.slice(start, end);
}
function assertArgs$1(path, suffix) {
assertPath(path);
if (path.length === 0) return path;
if (typeof suffix !== "string") {
throw new TypeError(`Suffix must be a string, received "${JSON.stringify(suffix)}"`);
}
}
// Copyright 2018-2025 the Deno authors. MIT license.
// This module is browser compatible.
function assertArg$3(url) {
url = url instanceof URL ? url : new URL(url);
if (url.protocol !== "file:") {
throw new TypeError(`URL must be a file URL: received "${url.protocol}"`);
}
return url;
}
// Copyright 2018-2025 the Deno authors. MIT license.
// This module is browser compatible.
/**
* Converts a file URL to a path string.
*
* @example Usage
* ```ts
* import { fromFileUrl } from "@std/path/posix/from-file-url";
* import { assertEquals } from "@std/assert";
*
* assertEquals(fromFileUrl(new URL("file:///home/foo")), "/home/foo");
* ```
*
* @param url The file URL to convert.
* @returns The path string.
*/ function fromFileUrl(url) {
url = assertArg$3(url);
return decodeURIComponent(url.pathname.replace(/%(?![0-9A-Fa-f]{2})/g, "%25"));
}
// Copyright 2018-2025 the Deno authors. MIT license.
// Copyright the Browserify authors. MIT License.
// Ported from https://github.com/browserify/path-browserify/
// This module is browser compatible.
function stripTrailingSeparators(segment, isSep) {
if (segment.length <= 1) {
return segment;
}
let end = segment.length;
for(let i = segment.length - 1; i > 0; i--){
if (isSep(segment.charCodeAt(i))) {
end = i;
} else {
break;
}
}
return segment.slice(0, end);
}
// Copyright 2018-2025 the Deno authors. MIT license.
// Copyright the Browserify authors. MIT License.
// Ported from https://github.com/browserify/path-browserify/
// This module is browser compatible.
// Alphabet chars.
// Non-alphabetic chars.
const CHAR_DOT = 46; /* . */
const CHAR_FORWARD_SLASH = 47; /* / */
// Copyright 2018-2025 the Deno authors. MIT license.
// Copyright the Browserify authors. MIT License.
// Ported from https://github.com/browserify/path-browserify/
// This module is browser compatible.
function isPosixPathSeparator(code) {
return code === CHAR_FORWARD_SLASH;
}
// Copyright 2018-2025 the Deno authors. MIT license.
// This module is browser compatible.
/**
* Return the last portion of a `path`.
* Trailing directory separators are ignored, and optional suffix is removed.
*
* @example Usage
* ```ts
* import { basename } from "@std/path/posix/basename";
* import { assertEquals } from "@std/assert";
*
* assertEquals(basename("/home/user/Documents/"), "Documents");
* assertEquals(basename("/home/user/Documents/image.png"), "image.png");
* assertEquals(basename("/home/user/Documents/image.png", ".png"), "image");
* assertEquals(basename(new URL("file:///home/user/Documents/image.png")), "image.png");
* assertEquals(basename(new URL("file:///home/user/Documents/image.png"), ".png"), "image");
* ```
*
* @example Working with URLs
*
* Note: This function doesn't automatically strip hash and query parts from
* URLs. If your URL contains a hash or query, remove them before passing the
* URL to the function. This can be done by passing the URL to `new URL(url)`,
* and setting the `hash` and `search` properties to empty strings.
*
* ```ts
* import { basename } from "@std/path/posix/basename";
* import { assertEquals } from "@std/assert";
*
* assertEquals(basename("https://deno.land/std/path/mod.ts"), "mod.ts");
* assertEquals(basename("https://deno.land/std/path/mod.ts", ".ts"), "mod");
* assertEquals(basename("https://deno.land/std/path/mod.ts?a=b"), "mod.ts?a=b");
* assertEquals(basename("https://deno.land/std/path/mod.ts#header"), "mod.ts#header");
* ```
*
* @param path The path to extract the name from.
* @param suffix The suffix to remove from extracted name.
* @returns The extracted name.
*/ function basename(path, suffix = "") {
if (path instanceof URL) {
path = fromFileUrl(path);
}
assertArgs$1(path, suffix);
const lastSegment = lastPathSegment(path, isPosixPathSeparator);
const strippedSegment = stripTrailingSeparators(lastSegment, isPosixPathSeparator);
return suffix ? stripSuffix(strippedSegment, suffix) : strippedSegment;
}
// Copyright 2018-2025 the Deno authors. MIT license.
// This module is browser compatible.
/**
* The character used to separate entries in the PATH environment variable.
*/ const DELIMITER = ":";
/**
* The character used to separate components of a file path.
*/ const SEPARATOR = "/";
/**
* A regular expression that matches one or more path separators.
*/ const SEPARATOR_PATTERN = /\/+/;
// Copyright 2018-2025 the Deno authors. MIT license.
// This module is browser compatible.
function assertArg$2(path) {
assertPath(path);
if (path.length === 0) return ".";
}
// Copyright 2018-2025 the Deno authors. MIT license.
// This module is browser compatible.
/**
* Return the directory path of a `path`.
*
* @example Usage
* ```ts
* import { dirname } from "@std/path/posix/dirname";
* import { assertEquals } from "@std/assert";
*
* assertEquals(dirname("/home/user/Documents/"), "/home/user");
* assertEquals(dirname("/home/user/Documents/image.png"), "/home/user/Documents");
* assertEquals(dirname("https://deno.land/std/path/mod.ts"), "https://deno.land/std/path");
* assertEquals(dirname(new URL("file:///home/user/Documents/image.png")), "/home/user/Documents");
* ```
*
* @example Working with URLs
*
* ```ts
* import { dirname } from "@std/path/posix/dirname";
* import { assertEquals } from "@std/assert";
*
* assertEquals(dirname("https://deno.land/std/path/mod.ts"), "https://deno.land/std/path");
* assertEquals(dirname("https://deno.land/std/path/mod.ts?a=b"), "https://deno.land/std/path");
* assertEquals(dirname("https://deno.land/std/path/mod.ts#header"), "https://deno.land/std/path");
* ```
*
* @param path The path to get the directory from.
* @returns The directory path.
*/ function dirname(path) {
if (path instanceof URL) {
path = fromFileUrl(path);
}
assertArg$2(path);
let end = -1;
let matchedNonSeparator = false;
for(let i = path.length - 1; i >= 1; --i){
if (isPosixPathSeparator(path.charCodeAt(i))) {
if (matchedNonSeparator) {
end = i;
break;
}
} else {
matchedNonSeparator = true;
}
}
// No matches. Fallback based on provided path:
//
// - leading slashes paths
// "/foo" => "/"
// "///foo" => "/"
// - no slash path
// "foo" => "."
if (end === -1) {
return isPosixPathSeparator(path.charCodeAt(0)) ? "/" : ".";
}
return stripTrailingSeparators(path.slice(0, end), isPosixPathSeparator);
}
// Copyright 2018-2025 the Deno authors. MIT license.
// This module is browser compatible.
/**
* Return the extension of the `path` with leading period.
*
* @example Usage
* ```ts
* import { extname } from "@std/path/posix/extname";
* import { assertEquals } from "@std/assert";
*
* assertEquals(extname("/home/user/Documents/file.ts"), ".ts");
* assertEquals(extname("/home/user/Documents/"), "");
* assertEquals(extname("/home/user/Documents/image.png"), ".png");
* assertEquals(extname(new URL("file:///home/user/Documents/file.ts")), ".ts");
* assertEquals(extname(new URL("file:///home/user/Documents/file.ts?a=b")), ".ts");
* assertEquals(extname(new URL("file:///home/user/Documents/file.ts#header")), ".ts");
* ```
*
* @example Working with URLs
*
* Note: This function doesn't automatically strip hash and query parts from
* URLs. If your URL contains a hash or query, remove them before passing the
* URL to the function. This can be done by passing the URL to `new URL(url)`,
* and setting the `hash` and `search` properties to empty strings.
*
* ```ts
* import { extname } from "@std/path/posix/extname";
* import { assertEquals } from "@std/assert";
*
* assertEquals(extname("https://deno.land/std/path/mod.ts"), ".ts");
* assertEquals(extname("https://deno.land/std/path/mod.ts?a=b"), ".ts?a=b");
* assertEquals(extname("https://deno.land/std/path/mod.ts#header"), ".ts#header");
* ```
*
* @param path The path to get the extension from.
* @returns The extension (ex. for `file.ts` returns `.ts`).
*/ function extname(path) {
if (path instanceof URL) {
path = fromFileUrl(path);
}
assertPath(path);
let startDot = -1;
let startPart = 0;
let end = -1;
let matchedSlash = true;
// Track the state of characters (if any) we see before our first dot and
// after any path separator we find
let preDotState = 0;
for(let i = path.length - 1; i >= 0; --i){
const code = path.charCodeAt(i);
if (isPosixPathSeparator(code)) {
// If we reached a path separator that was not part of a set of path
// separators at the end of the string, stop now
if (!matchedSlash) {
startPart = i + 1;
break;
}
continue;
}
if (end === -1) {
// We saw the first non-path separator, mark this as the end of our
// extension
matchedSlash = false;
end = i + 1;
}
if (code === CHAR_DOT) {
// If this is our first dot, mark it as the start of our extension
if (startDot === -1) startDot = i;
else if (preDotState !== 1) preDotState = 1;
} else if (startDot !== -1) {
// We saw a non-dot and non-path separator before our dot, so we should
// have a good chance at having a non-empty extension
preDotState = -1;
}
}
if (startDot === -1 || end === -1 || // We saw a non-dot character immediately before the dot
preDotState === 0 || // The (right-most) trimmed path component is exactly '..'
preDotState === 1 && startDot === end - 1 && startDot === startPart + 1) {
return "";
}
return path.slice(startDot, end);
}
// Copyright 2018-2025 the Deno authors. MIT license.
// This module is browser compatible.
function _format(sep, pathObject) {
const dir = pathObject.dir || pathObject.root;
const base = pathObject.base || (pathObject.name ?? "") + (pathObject.ext ?? "");
if (!dir) return base;
if (base === sep) return dir;
if (dir === pathObject.root) return dir + base;
return dir + sep + base;
}
function assertArg$1(pathObject) {
if (pathObject === null || typeof pathObject !== "object") {
throw new TypeError(`The "pathObject" argument must be of type Object, received type "${typeof pathObject}"`);
}
}
// Copyright 2018-2025 the Deno authors. MIT license.
// This module is browser compatible.
/**
* Generate a path from `ParsedPath` object.
*
* @example Usage
* ```ts
* import { format } from "@std/path/posix/format";
* import { assertEquals } from "@std/assert";
*
* const path = format({
* root: "/",
* dir: "/path/dir",
* base: "file.txt",
* ext: ".txt",
* name: "file"
* });
* assertEquals(path, "/path/dir/file.txt");
* ```
*
* @param pathObject The path object to format.
* @returns The formatted path.
*/ function format(pathObject) {
assertArg$1(pathObject);
return _format("/", pathObject);
}
// Copyright 2018-2025 the Deno authors. MIT license.
// This module is browser compatible.
/**
* Verifies whether provided path is absolute.
*
* @example Usage
* ```ts
* import { isAbsolute } from "@std/path/posix/is-absolute";
* import { assert, assertFalse } from "@std/assert";
*
* assert(isAbsolute("/home/user/Documents/"));
* assertFalse(isAbsolute("home/user/Documents/"));
* ```
*
* @param path The path to verify.
* @returns Whether the path is absolute.
*/ function isAbsolute(path) {
assertPath(path);
return path.length > 0 && isPosixPathSeparator(path.charCodeAt(0));
}
// Copyright 2018-2025 the Deno authors. MIT license.
// This module is browser compatible.
function assertArg(path) {
assertPath(path);
if (path.length === 0) return ".";
}
// Copyright 2018-2025 the Deno authors. MIT license.
// Copyright the Browserify authors. MIT License.
// Ported from https://github.com/browserify/path-browserify/
// This module is browser compatible.
// Resolves . and .. elements in a path with directory names
function normalizeString(path, allowAboveRoot, separator, isPathSeparator) {
let res = "";
let lastSegmentLength = 0;
let lastSlash = -1;
let dots = 0;
let code;
for(let i = 0; i <= path.length; ++i){
if (i < path.length) code = path.charCodeAt(i);
else if (isPathSeparator(code)) break;
else code = CHAR_FORWARD_SLASH;
if (isPathSeparator(code)) {
if (lastSlash === i - 1 || dots === 1) ; else if (lastSlash !== i - 1 && dots === 2) {
if (res.length < 2 || lastSegmentLength !== 2 || res.charCodeAt(res.length - 1) !== CHAR_DOT || res.charCodeAt(res.length - 2) !== CHAR_DOT) {
if (res.length > 2) {
const lastSlashIndex = res.lastIndexOf(separator);
if (lastSlashIndex === -1) {
res = "";
lastSegmentLength = 0;
} else {
res = res.slice(0, lastSlashIndex);
lastSegmentLength = res.length - 1 - res.lastIndexOf(separator);
}
lastSlash = i;
dots = 0;
continue;
} else if (res.length === 2 || res.length === 1) {
res = "";
lastSegmentLength = 0;
lastSlash = i;
dots = 0;
continue;
}
}
if (allowAboveRoot) {
if (res.length > 0) res += `${separator}..`;
else res = "..";
lastSegmentLength = 2;
}
} else {
if (res.length > 0) res += separator + path.slice(lastSlash + 1, i);
else res = path.slice(lastSlash + 1, i);
lastSegmentLength = i - lastSlash - 1;
}
lastSlash = i;
dots = 0;
} else if (code === CHAR_DOT && dots !== -1) {
++dots;
} else {
dots = -1;
}
}
return res;
}
// Copyright 2018-2025 the Deno authors. MIT license.
// This module is browser compatible.
/**
* Normalize the `path`, resolving `'..'` and `'.'` segments.
* Note that resolving these segments does not necessarily mean that all will be eliminated.
* A `'..'` at the top-level will be preserved, and an empty path is canonically `'.'`.
*
* @example Usage
* ```ts
* import { normalize } from "@std/path/posix/normalize";
* import { assertEquals } from "@std/assert";
*
* assertEquals(normalize("/foo/bar//baz/asdf/quux/.."), "/foo/bar/baz/asdf");
* assertEquals(normalize(new URL("file:///foo/bar//baz/asdf/quux/..")), "/foo/bar/baz/asdf/");
* ```
*
* @example Working with URLs
*
* Note: This function will remove the double slashes from a URL's scheme.
* Hence, do not pass a full URL to this function. Instead, pass the pathname of
* the URL.
*
* ```ts
* import { normalize } from "@std/path/posix/normalize";
* import { assertEquals } from "@std/assert";
*
* const url = new URL("https://deno.land");
* url.pathname = normalize("//std//assert//.//mod.ts");
* assertEquals(url.href, "https://deno.land/std/assert/mod.ts");
*
* url.pathname = normalize("std/assert/../async/retry.ts");
* assertEquals(url.href, "https://deno.land/std/async/retry.ts");
* ```
*
* @param path The path to normalize.
* @returns The normalized path.
*/ function normalize(path) {
if (path instanceof URL) {
path = fromFileUrl(path);
}
assertArg(path);
const isAbsolute = isPosixPathSeparator(path.charCodeAt(0));
const trailingSeparator = isPosixPathSeparator(path.charCodeAt(path.length - 1));
// Normalize the path
path = normalizeString(path, !isAbsolute, "/", isPosixPathSeparator);
if (path.length === 0 && !isAbsolute) path = ".";
if (path.length > 0 && trailingSeparator) path += "/";
if (isAbsolute) return `/${path}`;
return path;
}
// Copyright 2018-2025 the Deno authors. MIT license.
// This module is browser compatible.
/**
* Join all given a sequence of `paths`,then normalizes the resulting path.
*
* @example Usage
* ```ts
* import { join } from "@std/path/posix/join";
* import { assertEquals } from "@std/assert";
*
* assertEquals(join("/foo", "bar", "baz/asdf", "quux", ".."), "/foo/bar/baz/asdf");
* assertEquals(join(new URL("file:///foo"), "bar", "baz/asdf", "quux", ".."), "/foo/bar/baz/asdf");
* ```
*
* @example Working with URLs
* ```ts
* import { join } from "@std/path/posix/join";
* import { assertEquals } from "@std/assert";
*
* const url = new URL("https://deno.land");
* url.pathname = join("std", "path", "mod.ts");
* assertEquals(url.href, "https://deno.land/std/path/mod.ts");
*
* url.pathname = join("//std", "path/", "/mod.ts");
* assertEquals(url.href, "https://deno.land/std/path/mod.ts");
* ```
*
* @param path The path to join. This can be string or file URL.
* @param paths The paths to join.
* @returns The joined path.
*/ function join(path, ...paths) {
if (path === undefined) return ".";
if (path instanceof URL) {
path = fromFileUrl(path);
}
paths = path ? [
path,
...paths
] : paths;
paths.forEach((path)=>assertPath(path));
const joined = paths.filter((path)=>path.length > 0).join("/");
return joined === "" ? "." : normalize(joined);
}
// Copyright 2018-2025 the Deno authors. MIT license.
// This module is browser compatible.
/**
* Return a `ParsedPath` object of the `path`.
*
* @example Usage
* ```ts
* import { parse } from "@std/path/posix/parse";
* import { assertEquals } from "@std/assert";
*
* const path = parse("/home/user/file.txt");
* assertEquals(path, {
* root: "/",
* dir: "/home/user",
* base: "file.txt",
* ext: ".txt",
* name: "file"
* });
* ```
*
* @param path The path to parse.
* @returns The parsed path object.
*/ function parse(path) {
assertPath(path);
const ret = {
root: "",
dir: "",
base: "",
ext: "",
name: ""
};
if (path.length === 0) return ret;
const isAbsolute = isPosixPathSeparator(path.charCodeAt(0));
let start;
if (isAbsolute) {
ret.root = "/";
start = 1;
} else {
start = 0;
}
let startDot = -1;
let startPart = 0;
let end = -1;
let matchedSlash = true;
let i = path.length - 1;
// Track the state of characters (if any) we see before our first dot and
// after any path separator we find
let preDotState = 0;
// Get non-dir info
for(; i >= start; --i){
const code = path.charCodeAt(i);
if (isPosixPathSeparator(code)) {
// If we reached a path separator that was not part of a set of path
// separators at the end of the string, stop now
if (!matchedSlash) {
startPart = i + 1;
break;
}
continue;
}
if (end === -1) {
// We saw the first non-path separator, mark this as the end of our
// extension
matchedSlash = false;
end = i + 1;
}
if (code === CHAR_DOT) {
// If this is our first dot, mark it as the start of our extension
if (startDot === -1) startDot = i;
else if (preDotState !== 1) preDotState = 1;
} else if (startDot !== -1) {
// We saw a non-dot and non-path separator before our dot, so we should
// have a good chance at having a non-empty extension
preDotState = -1;
}
}
if (startDot === -1 || end === -1 || // We saw a non-dot character immediately before the dot
preDotState === 0 || // The (right-most) trimmed path component is exactly '..'
preDotState === 1 && startDot === end - 1 && startDot === startPart + 1) {
if (end !== -1) {
if (startPart === 0 && isAbsolute) {
ret.base = ret.name = path.slice(1, end);
} else {
ret.base = ret.name = path.slice(startPart, end);
}
}
// Fallback to '/' in case there is no basename
ret.base = ret.base || "/";
} else {
if (startPart === 0 && isAbsolute) {
ret.name = path.slice(1, startDot);
ret.base = path.slice(1, end);
} else {
ret.name = path.slice(startPart, startDot);
ret.base = path.slice(startPart, end);
}
ret.ext = path.slice(startDot, end);
}
if (startPart > 0) {
ret.dir = stripTrailingSeparators(path.slice(0, startPart - 1), isPosixPathSeparator);
} else if (isAbsolute) ret.dir = "/";
return ret;
}
// Copyright 2018-2025 the Deno authors. MIT license.
// This module is browser compatible.
/**
* Resolves path segments into a `path`.
*
* @example Usage
* ```ts
* import { resolve } from "@std/path/posix/resolve";
* import { assertEquals } from "@std/assert";
*
* const path = resolve("/foo", "bar", "baz/asdf", "quux", "..");
* assertEquals(path, "/foo/bar/baz/asdf");
* ```
*
* @param pathSegments The path segments to resolve.
* @returns The resolved path.
*/ function resolve(...pathSegments) {
let resolvedPath = "";
let resolvedAbsolute = false;
for(let i = pathSegments.length - 1; i >= -1 && !resolvedAbsolute; i--){
let path;
if (i >= 0) path = pathSegments[i];
else {
// deno-lint-ignore no-explicit-any
const { Deno } = globalThis;
if (typeof Deno?.cwd !== "function") {
throw new TypeError("Resolved a relative path without a current working directory (CWD)");
}
path = Deno.cwd();
}
assertPath(path);
// Skip empty entries
if (path.length === 0) {
continue;
}
resolvedPath = `${path}/${resolvedPath}`;
resolvedAbsolute = isPosixPathSeparator(path.charCodeAt(0));
}
// At this point the path should be resolved to a full absolute path, but
// handle relative paths to be safe (might happen when Deno.cwd() fails)
// Normalize the path
resolvedPath = normalizeString(resolvedPath, !resolvedAbsolute, "/", isPosixPathSeparator);
if (resolvedAbsolute) {
if (resolvedPath.length > 0) return `/${resolvedPath}`;
else return "/";
} else if (resolvedPath.length > 0) return resolvedPath;
else return ".";
}
// Copyright 2018-2025 the Deno authors. MIT license.
// This module is browser compatible.
function assertArgs(from, to) {
assertPath(from);
assertPath(to);
if (from === to) return "";
}
// Copyright 2018-2025 the Deno authors. MIT license.
// This module is browser compatible.
/**
* Return the relative path from `from` to `to` based on current working directory.
*
* If `from` and `to` are the same, return an empty string.
*
* @example Usage
* ```ts
* import { relative } from "@std/path/posix/relative";
* import { assertEquals } from "@std/assert";
*
* const path = relative("/data/orandea/test/aaa", "/data/orandea/impl/bbb");
* assertEquals(path, "../../impl/bbb");
* ```
*
* @param from The path to start from.
* @param to The path to reach.
* @returns The relative path.
*/ function relative(from, to) {
assertArgs(from, to);
from = resolve(from);
to = resolve(to);
if (from === to) return "";
// Trim any leading backslashes
let fromStart = 1;
const fromEnd = from.length;
for(; fromStart < fromEnd; ++fromStart){
if (!isPosixPathSeparator(from.charCodeAt(fromStart))) break;
}
const fromLen = fromEnd - fromStart;
// Trim any leading backslashes
let toStart = 1;
const toEnd = to.length;
for(; toStart < toEnd; ++toStart){
if (!isPosixPathSeparator(to.charCodeAt(toStart))) break;
}
const toLen = toEnd - toStart;
// Compare paths to find the longest common path from root
const length = fromLen < toLen ? fromLen : toLen;
let lastCommonSep = -1;
let i = 0;
for(; i <= length; ++i){
if (i === length) {
if (toLen > length) {
if (isPosixPathSeparator(to.charCodeAt(toStart + i))) {
// We get here if `from` is the exact base path for `to`.
// For example: from='/foo/bar'; to='/foo/bar/baz'
return to.slice(toStart + i + 1);
} else if (i === 0) {
// We get here if `from` is the root
// For example: from='/'; to='/foo'
return to.slice(toStart + i);
}
} else if (fromLen > length) {
if (isPosixPathSeparator(from.charCodeAt(fromStart + i))) {
// We get here if `to` is the exact base path for `from`.
// For example: from='/foo/bar/baz'; to='/foo/bar'
lastCommonSep = i;
} else if (i === 0) {
// We get here if `to` is the root.
// For example: from='/foo'; to='/'
lastCommonSep = 0;
}
}
break;
}
const fromCode = from.charCodeAt(fromStart + i);
const toCode = to.charCodeAt(toStart + i);
if (fromCode !== toCode) break;
else if (isPosixPathSeparator(fromCode)) lastCommonSep = i;
}
let out = "";
// Generate the relative path based on the path difference between `to`
// and `from`
for(i = fromStart + lastCommonSep + 1; i <= fromEnd; ++i){
if (i === fromEnd || isPosixPathSeparator(from.charCodeAt(i))) {
if (out.length === 0) out += "..";
else out += "/..";
}
}
// Lastly, append the rest of the destination (`to`) path that comes after
// the common path parts
if (out.length > 0) return out + to.slice(toStart + lastCommonSep);
else {
toStart += lastCommonSep;
if (isPosixPathSeparator(to.charCodeAt(toStart))) ++toStart;
return to.slice(toStart);
}
}
// Copyright 2018-2025 the Deno authors. MIT license.
// This module is browser compatible.
const WHITESPACE_ENCODINGS = {
"\u0009": "%09",
"\u000A": "%0A",
"\u000B": "%0B",
"\u000C": "%0C",
"\u000D": "%0D",
"\u0020": "%20"
};
function encodeWhitespace(string) {
return string.replaceAll(/[\s]/g, (c)=>{
return WHITESPACE_ENCODINGS[c] ?? c;
});
}
// Copyright 2018-2025 the Deno authors. MIT license.
// This module is browser compatible.
/**
* Converts a path string to a file URL.
*
* @example Usage
* ```ts
* import { toFileUrl } from "@std/path/posix/to-file-url";
* import { assertEquals } from "@std/assert";
*
* assertEquals(toFileUrl("/home/foo"), new URL("file:///home/foo"));
* assertEquals(toFileUrl("/home/foo bar"), new URL("file:///home/foo%20bar"));
* ```
*
* @param path The path to convert.
* @returns The file URL.
*/ function toFileUrl(path) {
if (!isAbsolute(path)) {
throw new TypeError(`Path must be absolute: received "${path}"`);
}
const url = new URL("file:///");
url.pathname = encodeWhitespace(path.replace(/%/g, "%25").replace(/\\/g, "%5C"));
return url;
}
// Copyright 2018-2025 the Deno authors. MIT license.
// This module is browser compatible.
/**
* Converts a path to a namespaced path. This function returns the path as is on posix.
*
* @example Usage
* ```ts
* import { toNamespacedPath } from "@std/path/posix/to-namespaced-path";
* import { assertEquals } from "@std/assert";
*
* assertEquals(toNamespacedPath("/home/foo"), "/home/foo");
* ```
*
* @param path The path.
* @returns The namespaced path.
*/ function toNamespacedPath(path) {
// Non-op on posix systems
return path;
}
// Copyright 2018-2025 the Deno authors. MIT license.
// This module is browser compatible.
function common$1(paths, sep) {
const [first = "", ...remaining] = paths;
const parts = first.split(sep);
let endOfPrefix = parts.length;
let append = "";
for (const path of remaining){
const compare = path.split(sep);
if (compare.length <= endOfPrefix) {
endOfPrefix = compare.length;
append = "";
}
for(let i = 0; i < endOfPrefix; i++){
if (compare[i] !== parts[i]) {
endOfPrefix = i;
append = i === 0 ? "" : sep;
break;
}
}
}
return parts.slice(0, endOfPrefix).join(sep) + append;
}
// Copyright 2018-2025 the Deno authors. MIT license.
// This module is browser compatible.
/** Determines the common path from a set of paths for POSIX systems.
*
* @example Usage
* ```ts
* import { common } from "@std/path/posix/common";
* import { assertEquals } from "@std/assert";
*
* const path = common([
* "./deno/std/path/mod.ts",
* "./deno/std/fs/mod.ts",
* ]);
* assertEquals(path, "./deno/std/");
* ```
*
* @param paths The paths to compare.
* @returns The common path.
*/ function common(paths) {
return common$1(paths, SEPARATOR);
}
// Copyright 2018-2025 the Deno authors. MIT license.
// This module is browser compatible.
/**
* Options for {@linkcode globToRegExp}, {@linkcode joinGlobs},
* {@linkcode normalizeGlob} and {@linkcode expandGlob}.
*/ const REG_EXP_ESCAPE_CHARS = [
"!",
"$",
"(",
")",
"*",
"+",
".",
"=",
"?",
"[",
"\\",
"^",
"{",
"|"
];
const RANGE_ESCAPE_CHARS = [
"-",
"\\",
"]"
];
function _globToRegExp(c, glob, { extended = true, globstar: globstarOption = true, // os = osType,
caseInsensitive = false } = {}) {
if (glob === "") {
return /(?!)/;
}
// Remove trailing separators.
let newLength = glob.length;
for(; newLength > 1 && c.seps.includes(glob[newLength - 1]); newLength--);
glob = glob.slice(0, newLength);
let regExpString = "";
// Terminates correctly. Trust that `j` is incremented every iteration.
for(let j = 0; j < glob.length;){
let segment = "";
const groupStack = [];
let inRange = false;
let inEscape = false;
let endsWithSep = false;
let i = j;
// Terminates with `i` at the non-inclusive end of the current segment.
for(; i < glob.length && !c.seps.includes(glob[i]); i++){
if (inEscape) {
inEscape = false;
const escapeChars = inRange ? RANGE_ESCAPE_CHARS : REG_EXP_ESCAPE_CHARS;
segment += escapeChars.includes(glob[i]) ? `\\${glob[i]}` : glob[i];
continue;
}
if (glob[i] === c.escapePrefix) {
inEscape = true;
continue;
}
if (glob[i] === "[") {
if (!inRange) {
inRange = true;
segment += "[";
if (glob[i + 1] === "!") {
i++;
segment += "^";
} else if (glob[i + 1] === "^") {
i++;
segment += "\\^";
}
continue;
} else if (glob[i + 1] === ":") {
let k = i + 1;
let value = "";
while(glob[k + 1] !== undefined && glob[k + 1] !== ":"){
value += glob[k + 1];
k++;
}
if (glob[k + 1] === ":" && glob[k + 2] === "]") {
i = k + 2;
if (value === "alnum") segment += "\\dA-Za-z";
else if (value === "alpha") segment += "A-Za-z";
else if (value === "ascii") segment += "\x00-\x7F";
else if (value === "blank") segment += "\t ";
else if (value === "cntrl") segment += "\x00-\x1F\x7F";
else if (value === "digit") segment += "\\d";
else if (value === "graph") segment += "\x21-\x7E";
else if (value === "lower") segment += "a-z";
else if (value === "print") segment += "\x20-\x7E";
else if (value === "punct") {
segment += "!\"#$%&'()*+,\\-./:;<=>?@[\\\\\\]^_‘{|}~";
} else if (value === "space") segment += "\\s\v";
else if (value === "upper") segment += "A-Z";
else if (value === "word") segment += "\\w";
else if (value === "xdigit") segment += "\\dA-Fa-f";
continue;
}
}
}
if (glob[i] === "]" && inRange) {
inRange = false;
segment += "]";
continue;
}
if (inRange) {
segment += glob[i];
continue;
}
if (glob[i] === ")" && groupStack.length > 0 && groupStack[groupStack.length - 1] !== "BRACE") {
segment += ")";
const type = groupStack.pop();
if (type === "!") {
segment += c.wildcard;
} else if (type !== "@") {
segment += type;
}
continue;
}
if (glob[i] === "|" && groupStack.length > 0 && groupStack[groupStack.length - 1] !== "BRACE") {
segment += "|";
continue;
}
if (glob[i] === "+" && extended && glob[i + 1] === "(") {
i++;
groupStack.push("+");
segment += "(?:";
continue;
}
if (glob[i] === "@" && extended && glob[i + 1] === "(") {
i++;
groupStack.push("@");
segment += "(?:";
continue;
}
if (glob[i] === "?") {
if (extended && glob[i + 1] === "(") {
i++;
groupStack.push("?");
segment += "(?:";
} else {
segment += ".";
}
continue;
}
if (glob[i] === "!" && extended && glob[i + 1] === "(") {
i++;
groupStack.push("!");
segment += "(?!";
continue;
}
if (glob[i] === "{") {
groupStack.push("BRACE");
segment += "(?:";
continue;
}
if (glob[i] === "}" && groupStack[groupStack.length - 1] === "BRACE") {
groupStack.pop();
segment += ")";
continue;
}
if (glob[i] === "," && groupStack[groupStack.length - 1] === "BRACE") {
segment += "|";
continue;
}
if (glob[i] === "*") {
if (extended && glob[i + 1] === "(") {
i++;
groupStack.push("*");
segment += "(?:";
} else {
const prevChar = glob[i - 1];
let numStars = 1;
while(glob[i + 1] === "*"){
i++;
numStars++;
}
const nextChar = glob[i + 1];
if (globstarOption && numStars === 2 && [
...c.seps,
undefined
].includes(prevChar) && [
...c.seps,
undefined
].includes(nextChar)) {
segment += c.globstar;
endsWithSep = true;
} else {
segment += c.wildcard;
}
}
continue;
}
segment += REG_EXP_ESCAPE_CHARS.includes(glob[i]) ? `\\${glob[i]}` : glob[i];
}
// Check for unclosed groups or a dangling backslash.
if (groupStack.length > 0 || inRange || inEscape) {
// Parse failure. Take all characters from this segment literally.
segment = "";
for (const c of glob.slice(j, i)){
segment += REG_EXP_ESCAPE_CHARS.includes(c) ? `\\${c}` : c;
endsWithSep = false;
}
}
regExpString += segment;
if (!endsWithSep) {
regExpString += i < glob.length ? c.sep : c.sepMaybe;
endsWithSep = true;
}
// Terminates with `i` at the start of the next segment.
while(c.seps.includes(glob[i]))i++;
j = i;
}
regExpString = `^${regExpString}$`;
return new RegExp(regExpString, caseInsensitive ? "i" : "");
}
// Copyright 2018-2025 the Deno authors. MIT license.
// This module is browser compatible.
const constants = {
sep: "/+",
sepMaybe: "/*",
seps: [
"/"
],
globstar: "(?:[^/]*(?:/|$)+)*",
wildcard: "[^/]*",
escapePrefix: "\\"
};
/** Convert a glob string to a regular expression.
*
* Tries to match bash glob expansion as closely as possible.
*
* Basic glob syntax:
* - `*` - Matches everything without leaving the path segment.
* - `?` - Matches any single character.
* - `{foo,bar}` - Matches `foo` or `bar`.
* - `[abcd]` - Matches `a`, `b`, `c` or `d`.
* - `[a-d]` - Matches `a`, `b`, `c` or `d`.
* - `[!abcd]` - Matches any single character besides `a`, `b`, `c` or `d`.
* - `[[:<class>:]]` - Matches any character belonging to `<class>`.
* - `[[:alnum:]]` - Matches any digit or letter.
* - `[[:digit:]abc]` - Matches any digit, `a`, `b` or `c`.
* - See https://facelessuser.github.io/wcmatch/glob/#posix-character-classes
* for a complete list of supported character classes.
* - `\` - Escapes the next character for an `os` other than `"windows"`.
* - \` - Escapes the next character for `os` set to `"windows"`.
* - `/` - Path separator.
* - `\` - Additional path separator only for `os` set to `"windows"`.
*
* Extended syntax:
* - Requires `{ extended: true }`.
* - `?(foo|bar)` - Matches 0 or 1 instance of `{foo,bar}`.
* - `@(foo|bar)` - Matches 1 instance of `{foo,bar}`. They behave the same.
* - `*(foo|bar)` - Matches _n_ instances of `{foo,bar}`.
* - `+(foo|bar)` - Matches _n > 0_ instances of `{foo,bar}`.
* - `!(foo|bar)` - Matches anything other than `{foo,bar}`.
* - See https://www.linuxjournal.com/content/bash-extended-globbing.
*
* Globstar syntax:
* - Requires `{ globstar: true }`.
* - `**` - Matches any number of any path segments.
* - Must comprise its entire path segment in the provided glob.
* - See https://www.linuxjournal.com/content/globstar-new-bash-globbing-option.
*
* Note the following properties:
* - The generated `RegExp` is anchored at both start and end.
* - Repeating and trailing separators are tolerated. Trailing separators in the
* provided glob have no meaning and are discarded.
* - Absolute globs will only match absolute paths, etc.
* - Empty globs will match nothing.
* - Any special glob syntax must be contained to one path segment. For example,
* `?(foo|bar/baz)` is invalid. The separator will take precedence and the
* first segment ends with an unclosed group.
* - If a path segment ends with unclosed groups or a dangling escape prefix, a
* parse error has occurred. Every character for that segment is taken
* literally in this event.
*
* Limitations:
* - A negative group like `!(foo|bar)` will wrongly be converted to a negative
* look-ahead followed by a wildcard. This means that `!(foo).js` will wrongly
* fail to match `foobar.js`, even though `foobar` is not `foo`. Effectively,
* `!(foo|bar)` is treated like `!(@(foo|bar)*)`. This will work correctly if
* the group occurs not nested at the end of the segment.
*
* @example Usage
* ```ts
* import { globToRegExp } from "@std/path/posix/glob-to-regexp";
* import { assertEquals } from "@std/assert";
*
* assertEquals(globToRegExp("*.js"), /^[^/]*\.js\/*$/);
* ```
*
* @param glob Glob string to convert.
* @param options Conversion options.
* @returns The regular expression equivalent to the glob.
*/ function globToRegExp(glob, options = {}) {
return _globToRegExp(constants, glob, options);
}
// Copyright 2018-2025 the Deno authors. MIT license.
// This module is browser compatible.
/**
* Test whether the given string is a glob.
*
* @example Usage
* ```ts
* import { isGlob } from "@std/path/is-glob";
* import { assert } from "@std/assert";
*
* assert(!isGlob("foo/bar/../baz"));
* assert(isGlob("foo/*ar/../baz"));
* ```
*
* @param str String to test.
* @returns `true` if the given string is a glob, otherwise `false`
*/ function isGlob(str) {
const chars = {
"{": "}",
"(": ")",
"[": "]"
};
const regex = /\\(.)|(^!|\*|\?|[\].+)]\?|\[[^\\\]]+\]|\{[^\\}]+\}|\(\?[:!=][^\\)]+\)|\([^|]+\|[^\\)]+\))/;
if (str === "") {
return false;
}
let match;
while(match = regex.exec(str)){
if (match[2]) return true;
let idx = match.index + match[0].length;
// if an open bracket/brace/paren is escaped,
// set the index to the next closing character
const open = match[1];
const close = open ? chars[open] : null;
if (open && close) {
const n = str.indexOf(close, idx);
if (n !== -1) {
idx = n + 1;
}
}
str = str.slice(idx);
}
return false;
}
// Copyright 2018-2025 the Deno authors. MIT license.
// This module is browser compatible.
/**
* Like normalize(), but doesn't collapse "**\/.." when `globstar` is true.
*
* @example Usage
* ```ts
* import { normalizeGlob } from "@std/path/posix/normalize-glob";
* import { assertEquals } from "@std/assert";
*
* const path = normalizeGlob("foo/bar/../*", { globstar: true });
* assertEquals(path, "foo/*");
* ```
*
* @param glob The glob to normalize.
* @param options The options to use.
* @returns The normalized path.
*/ function normalizeGlob(glob, options = {}) {
const { globstar = false } = options;
if (glob.match(/\0/g)) {
throw new Error(`Glob contains invalid characters: "${glob}"`);
}
if (!globstar) {
return normalize(glob);
}
const s = SEPARATOR_PATTERN.source;
const badParentPattern = new RegExp(`(?<=(${s}|^)\\*\\*${s})\\.\\.(?=${s}|$)`, "g");
return normalize(glob.replace(badParentPattern, "\0")).replace(/\0/g, "..");
}
// Copyright 2018-2025 the Deno authors. MIT license.
// This module is browser compatible.
/**
* Like join(), but doesn't collapse "**\/.." when `globstar` is true.
*
* @example Usage
* ```ts
* import { joinGlobs } from "@std/path/posix/join-globs";
* import { assertEquals } from "@std/assert";
*
* const path = joinGlobs(["foo", "bar", "**"], { globstar: true });
* assertEquals(path, "foo/bar/**");
* ```
*
* @param globs The globs to join.
* @param options The options to use.
* @returns The joined path.
*/ function joinGlobs(globs, options = {}) {
const { globstar = false } = options;
if (!globstar || globs.length === 0) {
return join(...globs);
}
let joined;
for (const glob of globs){
const path = glob;
if (path.length > 0) {
if (!joined) joined = path;
else joined += `${SEPARATOR}${path}`;
}
}
if (!joined) return ".";
return normalizeGlob(joined, {
globstar
});
}
export { DELIMITER, SEPARATOR, SEPARATOR_PATTERN, basename, common, dirname, extname, format, fromFileUrl, globToRegExp, isAbsolute, isGlob, join, joinGlobs, normalize, normalizeGlob, parse, relative, resolve, toFileUrl, toNamespacedPath };
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